Partility 21" AMBER + WHITE Emergency Hazard Warning Security 44 LED Strobe Roof Top Magnetic Base Mount Traffic Advisor Light Bar New 48 LED High Intensity White + Amber Strobe Lights + Magnetic Base 7 select flashing (and steady) modes, on/off switch, ciagrette adapter Universal for all vehicles with a 12V cigarette power source Weather resistant: Sealed well, can be used in outdoor enviroment Dimensions: 21" Length x 8.5" Width x 3.4" Height